Home / 26,831.58-40,247.67-8,111.78

Finding the Fourth Proportional to 26,831.58, 40,247.67 and 8,111.78

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Solution

The fourth proportional to 26,831.58, 40,247.67 and 8,111.78 is: 12,167.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,831.58 : 40,247.67 = 8,111.78 : x
  2. Step 2: Convert to fraction form
    26,831.58/40,247.67 = 8,111.78/x
  3. Step 3: Cross multiply
    26,831.58x = 40,247.67 × 8,111.78
  4. Step 4: Simplify right side
    26,831.58x = 326,480,043.31
  5. Step 5: Solve for x
    x = 326,480,043.31/26,831.58
  6. Step 6: Final answer
    x = 12,167.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.